http://www.bostonglobe.com/ideas/2014/05/31/the-trouble-with-organ-banking/Gaugdq7GMnEs8mKWISSAyM/story.html
Interview with an historian who disentangles paid transaction from gift relationship in the progression of tissue sharing from breast milk in 1908 through solid organs now.
And what's her interest? She's hot a book to sell: Banking on the Body. http://www.hup.harvard.edu/catalog.php?isbn=9780674281431